源码
import turtle import random def love(x,y): lv=turtle.Turtle() lv.hideturtle()
lv.up() lv.goto(x,y) def curvemove(): for i in range(20): lv.right(10)
lv.forward(2) lv.color('red','pink') lv.speed(10000000) lv.pensize(1) lv.down()
lv.begin_fill() lv.left(140) lv.forward(22) curvemove() lv.left(120)
curvemove() lv.forward(22)
lv.write("小花",font=("Arial",12,"normal"),align="center")#写上表白的人的名字 lv.left(140)
lv.end_fill() def tree(branchLen,t): if branchLen > 5: if branchLen<20:
t.color("green") t.pensize(random.uniform((branchLen + 5) / 4 - 2, (branchLen +
6) / 4 + 5)) t.down() t.forward(branchLen) love(t.xcor(),t.ycor()) t.up()
t.backward(branchLen) t.color("brown") return
t.pensize(random.uniform((branchLen+5)/4-2,(branchLen+6)/4+5)) t.down()
t.forward(branchLen) ang=random.uniform(15,45) t.right(ang)
tree(branchLen-random.uniform(12,16),t) t.left(2*ang)
tree(branchLen-random.uniform(12,16),t) t.right(ang) t.up()
t.backward(branchLen) myWin = turtle.Screen() t = turtle.Turtle()
t.hideturtle() t.speed(1000) t.left(90) t.up() t.backward(200) t.down()
t.color("brown") t.pensize(32) t.forward(60) tree(100,t) myWin.exitonclick()
效果图